Ziyang Zhenren glared at his subordinates fiercely, while Liu Yijiu looked at Zhu Houdao with a stern face, but secretly gave him a thumbs up, he was very uncomfortable now.

This kind of person can be found everywhere, but now he has been scolded by Zhu Houdao, and I don't know if he will be more honest in the future.

What even the cleaners understand, these officials think they are unimportant, and it is not so easy for the layman to guide the insider.

A comrade like Johnson is a really good comrade, don't you see it, Jiang Sen also doesn't understand, doesn't know, isn't there any problem at all? Besides, no matter whether this test is important or not, whether it is a waste of time, or whatever, the test flight will be carried out tomorrow, and the time in front of it will not be recovered.

In the past, Liu Yijiu would continue to fight, but now he doesn't.

Not everyone is like Johnson.

Moreover, some officials, although they say that their status is not high, but they hold grudges, once they are bad, even if they do not cause any consequences and impacts that are too strict, it is troublesome enough for Liu Yijiu and a waste of time.

"If you don't understand, just ask, but for the technical aspect, don't evaluate blindly! You comrades are like this, you have to ask about everything, and you are not humble......" Seeing everyone staring at him, especially Long Yaohua and Liu Yijiu, especially Liu Yijiu's little bastard eyes, Ziyang Zhenren, who didn't want to say anything, had to teach the middle-aged people who followed him a lesson.

However, this may sound like a heavy statement, but in fact it is like lifting a stick high and lowering it gently.

No one cares, what they want, maybe that's the attitude.

In order to divert their attention as much as possible, Ziyang Zhenren returned the topic to the original track, "Comrade Zhu Houdao, please continue, tonight we will popularize the importance and role of the work on fighter testing, so that it will be done." In their future work, comrades will be able to understand the difficulties in this regard, and will not consider problems with layman's eyes and thinking......"

Zhu Houdao did not start directly, but stared at Liu Yijiu.

Liu Yijiu was angry. As if he didn't let him say it, he was so cruel?

Immediately, he said dissatisfiedly, "Mr. Zhu, the chief will introduce the low, medium and high-speed ground gliding." Although this is very simple for us professionals, there are some complicated things in it and why we do it. Chief, they don't know......"

It's good to explain, so that there will be no one who doesn't understand to manage professional people to do something that should be professional but can't be professional.

Zhu Houdao got a roll of the eyes from Liu Yijiu, his heart was bitter, and he stared at the guy who interjected fiercely again, and then began to introduce.

"Low, medium and high-speed gliding, each type of gliding, has a different detection content. After the completion of the in-flight loop-in-the-loop test, all the faults encountered were solved, and the low-speed taxiing test began, which mainly depends on the flexibility of the aircraft to taxi on the ground. In the process of designing a fighter. It is necessary to consider the take-off conditions of the fighter, so it is necessary to have requirements for the fighter's ability to taxi on the ground, such as turning radius, taxiing speed and other indicators, and low-speed taxiing is used to detect whether these indicators of the fighter are consistent with our design. At this time, our fighter is a tricycle, but our tricycle is more expensive than an ordinary tricycle, worth hundreds of millions......"

These things are definitely not something that can be explained clearly in three or two sentences.

But it is impossible not to explain, Zhu Houdao uses the simplest language to explain the most professional content. But the last analogy made many people laugh.

"Your tricycle is too expensive!" It was the first time Johnson had heard of this theory.

Fighter planes and tricycles, one is the most advanced weapons and equipment in the entire world, and the other is just the most ordinary thing. No matter how advanced it is, it is impossible to fly in advance.

"After the results of the low-speed coasting test are available, we will not do the medium-speed coasting until there are no failures and meet the requirements of our design specifications. Moderate speed glide at speeds in the range of 60-100 km/h. And every speed has to be tested, just to test the fighter's ability to correct deviations. This kind of real yàn, imitation F-14 from the beginning to the present, has been carried out 134 times, eliminating 228 large and small hidden dangers and design problems...... "Zhu Houdao introduced the medium-speed glide test, especially emphasizing the important role of this test on the failure of the entire fighter system.

"Didn't it be tested many times at the beginning, how could there still be failures? Why was it not checked out before, but it was able to be checked during such a test? "Ziyang Zhenren is very incomprehensible.

According to his idea, or according to everyone's idea, the fighter let the pilot in the cockpit simulate the flight at the beginning, shouldn't all the hidden dangers and failures of the fighter be checked?

The low-speed glide behind is all to test the performance of the fighter.

Medium-speed gliding, shouldn't performance also be tested?

"It's really to test performance, and that's the ability to detect the warplane's deviation correction. The difference between medium-speed taxiing and other taxiing tests is that after the fighter is started, it begins to taxi on the airport runway, and during the whole taxiing process, the pilot will not make any operation on the fighter, put the fighter on the runway, and only rely on the engine thrust to slide forward. If the plane is biased to one side and cannot walk in a straight line, it means that the fighter has a zài problem! There are many factors that deviate, which may be asymmetrical in appearance; It could also be that there is a problem with the landing gear - including the landing gear mounting position, brakes, etc., which can cause the aircraft to deviate. It had to be improved to allow the fighter to run in a straight line, and far in a straight line, before it could move on to the next step of the high-speed glide test. ”

Hearing Zhu Houdao's explanation, many leaders did not take a breath.

They knew that the development of fighters was very complicated and difficult, but they definitely did not expect such a process.

There are so many doorways just for the ground tests before the test flight.

Moreover, during these tests, it is also a process of making subtle modifications to the entire design scheme, and the entire project team does not hand over the design drawings to the production unit for production after completion.

"The problem of deviation has been bothering us for a long time, and the progress has been delayed for about half a year, and it is because ......of this test that our first flight work has to be pushed back again and again," Liu Yijiu sighed and explained to Long Yaohua and Ziyang Zhenren and others.

In the whole world, it is estimated that China has conducted the largest number of experiments in this area.

"This is not caused by our lack of design capabilities, of course, there are also factors in this regard, and more because our industrial base is not good, the processing and manufacturing accuracy is not high enough, and the assembly capacity is not strong enough. Therefore, in the process of developing fighter aircraft production, we must also solve the problem of various top-level processing and manufacturing equipment and even materials supporting the production. ”

A fighter is not only related to design and production, but also a high degree of integration of the entire industrial system.

The reason why Liu Yijiu said these words is to tell the bosses above that if you want to have better weapons and equipment, you must not just let this project run, but also let various basic industries related to this project carry out the same improvement.

"The industrial base is very important, we all know that. Comrade Xiao Liu, now that our fighter can make its first flight, does this mean that our relevant supporting industries have also been upgraded? "What Ziyang is most concerned about is the industrial base.

If it weren't for the fact that China's industrial base was too poor, how would the Americans dare to say something like that?

"Relatively speaking, it's a bit of an improvement. Chief, although we can make it, it doesn't mean that our foundation is already very good. The United States and the Soviet Union have a good industrial base, and their fighters are able to be equipped in large quantities in a short period of time, and they may produce hundreds of them a year, but we, even if we get them, because our talent reserves are not enough and the industrial base is not enough, the number we can produce will not exceed 25 per year......" Liu Yijiu was very helpless.

The Tao in this is really a little too deep.

For the chiefs above, they can't figure it out, at least, not in a short time.

It is enough to tell them the impact or importance of the industrial base on these advanced manufacturing industries.

Then Liu Yijiu asked Zhu Houdao to continue to talk about the high-speed glide test.

"The high-speed taxiing is used to determine that the aerodynamic force of the fighter is consistent with the design value, and only the fighter that is completely consistent can dare to conduct flight tests!" Zhu Houdao explained the role of the ground test, the last step before the test flight.

Without high-speed taxiing, the fighter would never have been able to fly!

"Under the requirements of aerodynamics, it is necessary to lift the front wheels and then lower them in the high-speed coasting phase. That is, the pilot lifts the lever up after taxiing to a certain speed, at which point the aerodynamic force of the aircraft should be able to lift the front wheels. Then push the rod again, and the nose wheel of the plane can return to the ground. Then take the aerodynamic parameters recorded by the relevant equipment on the aircraft back and compare them with the number of wind blowing in the wind tunnel, and revise the calculation model, and only when it is completely consistent can the fighter make its first flight. At the moment, all these works have been completed, and all the results have reached the optimal process of design, and our imitation of the F-14 is just waiting to fly! ”

Indeed, for this day, they carried out various trials that lasted for more than two years.

Even now, the fighter planes parked in the assembly workshop are still undergoing operational tests in various parts.

In order to make China's giant pandas soar into the sky!

(To be continued.) )